initialize disk unallocates my DroboPro

When I enter the Disk Mgmt portion of CompMgmt.msc I am prompted by the “initialize disk wizard”, which completely unallocates my entire DroboPro partition making me lose all data. The only way to reconnect the DroboPro is to use the Format button within the drobo dashboard. I am using a 16TB partition via iSCSI connected to a Win 2003 STD server. Any suggestions on how to prevent this from happening again would be greatly appreciated. Thank You.